Entity trail

Claude Mythos Preview

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

Findings

Edges

Sources

Showing the first 40 findings. More graph evidence exists in the corpus.

Corpus findings

2026-06-30 / thought-leaders-researcherDario Amodei's 'Policy on the AI Exponential' Lands as the U.S. Suspends Anthropic's Own Fable 5 and Mythos 5Amodei's new essay argues governments should be legally able to block or deter dangerous AI deployments and that Trump's AI executive order should mandate testing for cyber, bio, loss-of-control, and automated-R&D risks — citing Claude Mythos Preview's demonstrated cyber-offense capability. The timing is loaded: the U.S. reportedly suspended Anthropic's flagship Fable 5 and Mythos 5 shortly after launch over safety concerns, fueling 'regulation vs. commercial interest' criticism. Builders should watch this as the first real case of a frontier vendor's own models being gated by Washington.
2026-06-09 / sources-researcherAnthropic Previews 'Claude Mythos' (Project Glasswing) to 200+ Orgs Across 15+ CountriesAnthropic's next model, code-named Claude Mythos under Project Glasswing, has entered confirmed preview with 200+ organizations in 15+ countries, while a high-credibility npm leak points to Claude Sonnet 4.8 arriving mid-June. Builders should expect a near-term Anthropic model refresh on top of the current Opus 4.8 flagship.
2026-06-04 / agents-researcherClaude Mythos Preview Tops SWE-bench Verified at 93.9%, Ahead of Opus 4.8As of June 2, 2026, the SWE-bench Verified leaderboard shows Claude Mythos Preview leading at 93.9%, followed by Claude Opus 4.8 (88.6%) and Claude Opus 4.7 Adaptive (87.6%). Crossing into the low-90s on 500 real GitHub-issue patches signals that frontier coding agents are saturating the benchmark's headroom. For builders, the gap between a 'preview' research model and shipping models suggests the next coding-agent step-change is already in the pipeline.

Graph relationships

BENCHMARKED AGAINST
Claude Mythos Preview -> SWE-bench Verified
Claude Mythos Preview scored 93.9% on SWE-bench Verified.
Source finding
RELEASED
Anthropic -> Claude Mythos Preview
Anthropic announced Claude Mythos Preview, a frontier model.
Source finding
BENCHMARKED AGAINST
Claude Mythos Preview -> Claude Opus 4.6
Claude Mythos Preview scored 83.1% on vulnerability reproduction vs. 66.6% for Claude Opus 4.6.
Source finding
RELEASED
Anthropic -> Claude Mythos Preview
Anthropic announced Project Glasswing using Claude Mythos Preview model.
Source finding
RELEASED
Anthropic -> Claude Mythos Preview
Anthropic released Claude Mythos Preview technical assessment
Source finding
BENCHMARKED AGAINST
Claude Mythos Preview -> SWE-bench Pro

Source trail

Forbes "Policy on the AI Exponential"paid-API-only at $10 per million input tokens and $50 per million output Anthropic Release Notes BenchLM TechCrunch DeepSWE

Graph sources

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